Coil Transducer with Reduced Arcing and Improved High Voltage Breakdown Performance Characteristics
First Claim
1. A coil transducer, comprising:
- a generally planar electrically insulating substrate comprising opposing upper and lower surfaces, the substrate forming a dielectric barrier and comprising an electrically insulating, non-metallic, non-semiconductor, low dielectric loss material;
a first electrically conductive coil formed in at least a first metalized layer disposed within, upon or near the substrate, anda second electrically conductive coil formed in at least a third metalized layer disposed within, upon or near the substrate;
wherein the first and second coils are spatially arranged and configured respecting one another such that at least one of power and data signals may be transmitted by the first coil to the second coil across the substrate, the first coil is separated from the second coil by a vertical distance exceeding about 1 mil, and a breakdown voltage between the first coil and the second coil exceeds about 2,000 volts RMS.
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Accused Products
Abstract
Disclosed herein are various embodiments of coil transducers and galvanic isolators configured to provide high voltage isolation and high voltage breakdown performance characteristics in small packages. A coil transducer is provided across which data or power signals may be transmitted and received by primary and secondary coils disposed on opposing sides thereof without high voltage breakdowns occurring therebetween. At least portions of the coil transducer are formed of an electrically insulating, non-metallic, non-semiconductor, low dielectric loss material. The coil transducer may be formed in a small package using, by way of example, printed circuit board, CMOS-compatible and other fabrication and packaging processes.
124 Citations
35 Claims
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1. A coil transducer, comprising:
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a generally planar electrically insulating substrate comprising opposing upper and lower surfaces, the substrate forming a dielectric barrier and comprising an electrically insulating, non-metallic, non-semiconductor, low dielectric loss material; a first electrically conductive coil formed in at least a first metalized layer disposed within, upon or near the substrate, and a second electrically conductive coil formed in at least a third metalized layer disposed within, upon or near the substrate; wherein the first and second coils are spatially arranged and configured respecting one another such that at least one of power and data signals may be transmitted by the first coil to the second coil across the substrate, the first coil is separated from the second coil by a vertical distance exceeding about 1 mil, and a breakdown voltage between the first coil and the second coil exceeds about 2,000 volts RMS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A coil transducer, comprising:
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a generally planar electrically insulating substrate comprising opposing upper and lower surfaces, the substrate forming a dielectric barrier and comprising an electrically insulating, non-metallic, non-semiconductor low-dielectric-loss material having a dielectric loss tangent at room temperature that is less than or equal to 0.05; a first electrically conductive coil formed in at least a first metalized layer disposed within, on or near the substrate, and a second electrically conductive coil formed in at least a third metalized layer disposed within, on or near the substrate; wherein the first and second coils are spatially arranged and configured respecting one another such that at least one of power and data signals may be transmitted by the first coil to the second coil across the substrate, the first metalized layer is separated from the third metalized layer by a vertical distance exceeding about 1 ml, and a breakdown voltage between the first coil and the second coil exceeds about 2,000 volts RMS. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification